Improvement in loom stop-motions and shuttles



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Improvement in Loom Shuttles and Stop Mechanism.

Patented Jan. 16, 1872.

Sc Rag a;

ATEN'I FFICE.

WILLIAM W. TUCKER, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN LOOM STOP=MOTIONS AND SHUTTLES.

Specification forming part of Letters Patent No. 122,745, dated January16,1872.

SPECIFICATION.

I, WILLIAM W. TUCKER, of Hartford, in the county of Hartford and Stateof Connecticut, have invented certain new and useful Improvements inLooms, and Shuttles for the same, of which the following is aspecification, reference beinghad to the accompanying drawing, inwhich-- Figure 1 is a view of the loom, certain parts being omitted, thesame not being necessary to the understanding of my invention. Fig. 2 isa detached view of one end of the lay bearing one feature of myinvention, an end view. Fig. 3 is a rear view of the parts shown in Fig.2. Fig. 4 is a front view of the parts shown in Figs. 2 and 3. Fig. 5 isa view similar to I that in Fig.2, except that the device is" sprung,

a term that will be definitely defined hereinafter. Fig. 6 is a centralvertical longitudinal section of the shuttle.

Like letters indicate like parts in all the figures.

The object and purpose of this invention are the production of a loomwhich shall cease automatically to operate when the warp-shed becomesimperfect.

The letter A indicates the general frame of the 100111, and B the lay,pivoted within the frame in the usual manner. At either end of the layare the common shuttle-boxes. The letter C indicates the shuttle, whoseconstruction and operation I will now describe. It is open alongitscenter as common, and this opening contains the common bobbin, &c. Atone side of this openingis attached my improve ment, consisting of thewire spring I), fasten ed to the shuttle at b and its free end caughtunder the base of the trigger a when the de vice is set. This trigger ismade of thin sheet metal, pivoted to the shuttle at 0. Both ends of thebase of the trigger are beveled off (from the observer, in Fig. 6,) sothat when the top of the trigger is canted to the right or left thespring b will escape over the bevel, and the curved part of the springwill fly up above the top of the shuttle. Such canting of the top of thetrigger will take place when the warpshed from any reason becomesimperfect, or if any extraneous matter gets into the warp-shed. At ornear near the end of the lay-beam is the double elbow d hung, and freeto rotate in the bearing d affixed to the back of the beam, con nectedby the connecting-rod 6 with the lever e pivoted at e to the beam.Ordinarily this device is set in the position indicated in Fig. 2, thefront end of the double elbow hanging straight down and resting againstthe stop t. The shuttle ordinarily, and while the curved spring b isheld under the base of the trigger, will not interfere with the doubleelbow d,- but when the warp-shed becomes imperfect and by acting on thetrigger allows the curved part of the spring I) to rise, then thisspring will strike against the double elbow cl, will carry its frontelbow along a little way, and the weight of the long end of the lever 0will cause the parts to assume the position shown in Fig 5, which is theposition I have once before referred to as sprung. This motion of thelever c can be made available to shift the operating belt of the loomfrom the fixed to the loose pulley, and thus stop the loom, in a varietyof ways.

In common looms the belt-shipper is upon the end of a pivoted lever witha spring, so attached to the lever as to hold the belt upon the loosepulley when not otherwise controlled; and the opposite end of the leveris confined against the action of the spring by a hook or latch takinghold upon it. One very feasible way to effect the stopping of the loomby the springing of the device described attached to the end of the lay,is to have this hook or latch attached to the frame of the loom near thefront, so that while the lever e is in the position shown in Figs. 1, 2,3, and 4, its front end, when the lay moves to the front, will pass justunder the latch, and will not interfere with it; but when the lever 0assumes the position shown in Fig. 5, then the front end thereof will beraised high enough to strike against the latch and free the shipper fromits hold, which will then immediately transfer the belt to the loosepulley and thus stop the loom.

One great advantage of this stop-motion over others lies in the factthat when a loom is stopped by the other stop-motions it is necessary toexamine where the fault lies, whether in the weft or the warp, while thestoppage by this invention always indicates trouble in the warp.

I claim as my invention- 1. In combination with a shuttle, the curvedwith the tripping mechanism, substantially as spring b and the trigger0, arranged, constructdescribed, upon the end of the lay, the whole ed,and operating substantially as described, arranged and operatedsubstantially as defor the purpose set forth. scribed, for the purposeset forth.

2. The combination and arrangement, with Dated September 25, 1871. thelay, of the pivoted double elbow d, the con- WILLIAM W. TUCKER.necting-rod e, and thelever e substantially as described, and for thepurpose set forth. Witnesses:

3. The combination of a shuttle, having W. E. SIMONDS,

mechanism, substantially as described herein, HUGH OFLAHEBTY. (95)

